.k-square-holder2 {
  width: 100%;
  margin: 0;
  padding: 0;
  text-align: center;
  margin-top: 0.2rem;
}
.k-square-holder2 > div{
    display: inline-block;
    width: 1.2rem;
    vertical-align: baseline;
    font-size: 0;
}
.k-square-holder2 > div div{
  width: 0.1rem;
}
.k-square-holder2 > p{
    display: inline-block;
    font-size: 0.7rem;
    color: #aaa;
    padding-left: 0.2rem;
    line-height: 1.2rem;
}
.k-square4 {
  display: inline-block;
  width: 0.3rem;
  height: 0.3rem;
  margin-right: 0.2rem;
  margin-top: 0.2rem;
  background: #000;
  opacity: 1;
  animation: k-loadingR 2.8s infinite;
  opacity: 0;
}
.k-square4b {
  animation-delay: 0.7s;
}
.k-square4c {
  animation-delay: 2.1s;
}
.k-square4d {
  animation-delay: 1.4s;
}
@keyframes k-loadingR {
  0% {
    opacity: 0.5;
    background: #000;
  }
  30% {
    opacity: 0.5;
    background: #666;
  }
  60% {
    opacity: 0;
  }
  75% {
    opacity: 0;
  }
  100% {
    opacity: 0.5;
    background: #000;
  }
}
